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Protein Structure

  1. Annalisa Pastore1,
  2. Arthur M Lesk2

Published Online: 27 JAN 2006

DOI: 10.1038/npg.els.0005714



How to Cite

Pastore, A. and Lesk, A. M. 2006. Protein Structure. eLS. .

Author Information

  1. 1

    National Institute for Medical Research, London, UK

  2. 2

    University of Cambridge, Cambridge, UK

Publication History

  1. Published Online: 27 JAN 2006


The great variety of structures and functions of proteins found in humans and other organisms conceals an underlying unity in chemical structure. All proteins share a common repetitive main chain, while differences in the sequences of side chains give proteins their differences in structure and function.


  • secondary structure (α helix, β sheet);
  • tertiary structure;
  • protein folding;
  • folding pattern;
  • modular protein